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https://github.com/FFmpeg/FFmpeg.git
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50e66726a2
This should fix several issues with odd dimensions inputs. lut, vflip, pad and crop video filters also need to be checked for such issues. It's possible sws is also affected.
112 lines
3.7 KiB
C
112 lines
3.7 KiB
C
/*
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* Copyright (c) 2011 Stefano Sabatini
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* filter for showing textual video frame information
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*/
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#include "libavutil/adler32.h"
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#include "libavutil/imgutils.h"
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#include "libavutil/internal.h"
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#include "libavutil/pixdesc.h"
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#include "libavutil/timestamp.h"
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#include "avfilter.h"
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#include "internal.h"
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#include "video.h"
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typedef struct {
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unsigned int frame;
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} ShowInfoContext;
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static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
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{
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AVFilterContext *ctx = inlink->dst;
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ShowInfoContext *showinfo = ctx->priv;
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
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uint32_t plane_checksum[4] = {0}, checksum = 0;
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int i, plane, vsub = desc->log2_chroma_h;
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for (plane = 0; plane < 4 && frame->data[plane]; plane++) {
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int64_t linesize = av_image_get_linesize(frame->format, frame->width, plane);
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uint8_t *data = frame->data[plane];
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int h = plane == 1 || plane == 2 ? FF_CEIL_RSHIFT(inlink->h, vsub) : inlink->h;
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if (linesize < 0)
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return linesize;
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for (i = 0; i < h; i++) {
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plane_checksum[plane] = av_adler32_update(plane_checksum[plane], data, linesize);
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checksum = av_adler32_update(checksum, data, linesize);
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data += frame->linesize[plane];
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}
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}
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av_log(ctx, AV_LOG_INFO,
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"n:%d pts:%s pts_time:%s pos:%"PRId64" "
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"fmt:%s sar:%d/%d s:%dx%d i:%c iskey:%d type:%c "
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"checksum:%08X plane_checksum:[%08X",
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showinfo->frame,
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av_ts2str(frame->pts), av_ts2timestr(frame->pts, &inlink->time_base), av_frame_get_pkt_pos(frame),
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desc->name,
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frame->sample_aspect_ratio.num, frame->sample_aspect_ratio.den,
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frame->width, frame->height,
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!frame->interlaced_frame ? 'P' : /* Progressive */
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frame->top_field_first ? 'T' : 'B', /* Top / Bottom */
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frame->key_frame,
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av_get_picture_type_char(frame->pict_type),
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checksum, plane_checksum[0]);
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for (plane = 1; plane < 4 && frame->data[plane]; plane++)
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av_log(ctx, AV_LOG_INFO, " %08X", plane_checksum[plane]);
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av_log(ctx, AV_LOG_INFO, "]\n");
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showinfo->frame++;
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return ff_filter_frame(inlink->dst->outputs[0], frame);
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}
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static const AVFilterPad avfilter_vf_showinfo_inputs[] = {
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{
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.name = "default",
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.type = AVMEDIA_TYPE_VIDEO,
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.get_video_buffer = ff_null_get_video_buffer,
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.filter_frame = filter_frame,
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},
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{ NULL }
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};
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static const AVFilterPad avfilter_vf_showinfo_outputs[] = {
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{
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.name = "default",
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.type = AVMEDIA_TYPE_VIDEO
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},
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{ NULL }
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};
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AVFilter avfilter_vf_showinfo = {
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.name = "showinfo",
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.description = NULL_IF_CONFIG_SMALL("Show textual information for each video frame."),
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.priv_size = sizeof(ShowInfoContext),
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.inputs = avfilter_vf_showinfo_inputs,
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.outputs = avfilter_vf_showinfo_outputs,
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};
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